Funny you say about the 1100D sweet spot, I find ISO800 better for Astro Images with mine.. But I have terrible skies so probably that is why. Good stars to the edge which is terrific.
Thanks for the small entertainment, enjoyed scrolling the guesses.
Well, funny you should ask Kevin just got back from SPSP and despite the cloud dodging I may actually have one or two test subs from the rig. Watch this space